如何在Django中创建私有模型字段?

问题描述

有没有办法在Django中创建私有字段.我希望只能通过此类的方法访问此字段.

Is there any way, to create a private field in Django. I want this field be accessible only from this class's methods.

以下是我想要的示例:

class TestModel(models.Model):
    __some_field = models.CharField(max_length=255)

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解决方案:

更新:最后，我为这种情况设计了自己的解决方案，并将其添加到我的django-fields程序包中，该程序包可在GitHub上找到: https://github.com/svetlyak40wt/django-fields

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SOLUTION FOUND:

Update: finally, I forge my own solution for this case and added it into my django-fields package, which is available on the GitHub: https://github.com/svetlyak40wt/django-fields

具体来说，如果要在模型中包含私有字段，则必须从我的 ModelWithPrivateFields 类.

Specifically, if you want to have private fields in your models, then you have to inherit them from my ModelWithPrivateFields class.

可在 django-fields的单元测试中找到示例.

推荐答案

为什么要这样做?

如果您只想在管理界面中隐藏此字段，则可以使用该字段的名称而不必使用下划线(据我所知，这对Django没什么影响)并注册TestModelAdmin类:

If you just want to hide this field in admin interface you can use name of this field without leading underscore (it doesn't make any difference for Django, as far as I know) and register TestModelAdmin class:

class TestModelAdmin(admin.ModelAdmin):
    exclude = ('some_field',)

admin.site.register(TestModel, TestModelAdmin)

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